The Brown decision took over the Plessy decision
The American Revolution was principally caused by colonial opposition to British attempts to impose greater control over the colonies and to make them repay the crown for its defense of them during the French and Indian War (1754–63). ... Read more about the causes of the American Revolution in the United States article
Communicable diseases were a byproduct of the Columbian exchange.
Answer:
The secret talks became the foundation for a peace settlement that included the unbanning of the ANC and the liberation of political prisoners, such as Mandela himself.
Explanation:
During the late 1980s, Mandela´s established a series of secret talks with the African National Congress (ANC), the National Party, the Minister of Justice, representatives of the private business sector, and even the apartheid intelligence service to negotiate a peace settlement that would eventually lead to the end of apartheid.